After updating with the package manager, I can't compile any more, because I get the error "amsmath.sty not found".
I'd like to do a complete new install of MiKTeX. I did an uninstall using Windows, but still had two directories of MiKTeX 2.9, so I tried to remove them. Also have a directory for 2.8. I have files with extensions
.old.old that I can't remove. Should I remove everything? And what to do about the